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  1. Hey everyone! I've created this topic to discuss about tutoring in IB. I am currently nearing the end of the IB programme (year 12). Through the course, I have come to realise that three of my best subject areas (ranked from most) include: 1. Economics HL 2. Math Analysis and Approaches HL (Since the M21 batch will be the first trying out this new change to syllabus, I might cater to your needs the best if you're a M22 or later candidate. I could also let you know how the final exams would be like once I take it next year if you'd like ) 3. Chemistry SL
  2. I was recently doing some practice problems for my IB chemistry SL test and ran across this problem. "A 2.450 g sample of a mixture of NaCl and CaCl2 was dissolved in distilled water. The chloride solution was treated with excess AgNO3 (aq) solution. The precipitated AgCl (s) was collected, washed, and dried. The mass of the dried AgCl was 6.127 g. Calculate percent by mass of the NaCl and CaCl2 in the original mixture." (2 marks) AgCl has a molar mass of 143.45 g/mol, so I calculated that the amount of Cl in the sample was 6.127*(35.45/143.35) = 1.515 g Cl This means that toget
  3. Hey so I have a question. If lets say I do my IA in biology and follow an experiment that has been done before but I change a few things to make it my own? e.g the effect of temperature on seed germination but instead of copying the exact temperature conditions, I come up with my own. Is it plagiarism? Do you have to come up with your own experiment?I'm freaking out
  4. Hello, I want to do an experiment relating the properties of a transition metal complex to the wavelength of light that the complex absorbs, but I can't seem to find any data on the wavelength of light absorbed by different complexes. Are there any databases that contain this information or information related to the absorption spectrum of transition metal complexes?
  5. Hello, I'm doing my chemistry IA on paper chromatography of different colours of leaves. I really would appreciate a sample IA about chromatography that I can get the structure from. can you please share with me anything that might help? Thank you very much.
  6. Hi, I started doing my chemistry IA on the effect of temperature on buffering capacity. I added a pH 7 buffer to distilled water and titrated it with NaOH. I then measured the amount of NaOH taken to increase the pH of the water by a unit of 1. I tried this for temperatures between 5 and 80 degrees but there was no significant difference between the data obtained. This there any notable fault in my methodology? I have to finish gathering data for my IA within one week. Since I was going to discuss the effect of temperature on the equilibria of the buffer solution, I am in the p
  7. Hey guys! Hope you're doing well. So we've (17-year-olds :)) started this initiative of making Youtube videos on hard-to-grasp chemistry and physics concepts. I'd really appreciate it if you guys could take some time out and watch a video or two. Currently, we've only made 2 videos, but there'll be more coming soon. Don't forget to like and subscribe for more! Thank you guys for your support! Really appreciate it! Here's the link to one of our videos - https://www.youtube.com/watch?v=p0wnSxwNuds
  8. Hey guys! Hope you're doing well. So we've (17-year-olds :)) started this initiative of making Youtube videos on hard-to-grasp chemistry and physics concepts. I'd really appreciate it if you guys could take some time out and watch a video or two. Currently, we've only made 2 videos, but there'll be more coming soon. Don't forget to like and subscribe for more! Thank you guys for your support! Really appreciate it! Here's the link to one of our videos - https://www.youtube.com/watch?v=p0wnSxwNuds
  9. I am going to start the ib next month and I wanted to know what previous knowledge I need to have of math and chemistry so I can start preparing myself in these two subjects before the start of the year.
  10. PLEASEEE HELP ME DECIDE If you've taken HL economics and/or HL chemistry (or know anyone that has), I need your opinion because I'm really indecisive. My other HL's are HL math analysis and approaches and HL biology, but I'm conflicted between HL chem or econs. I'm considering studying medicine (then specialising in either neuroscience or cardiology) or maybe finance. Is HL chemistry really as hard as everyone says it is? Could I still go into medicine without taking Chemistry HL? pls send help
  11. How good is this IA topic? "Investigating the effect of increasing concentration on the rate of reaction between sulfuric/hydrochloric acid and calcium carbonate." Are there any possible improvements to this topic? Like is this possible to do? If not, what are some changes I could make?
  12. Hi. For my extended essay I want to talk about why certain chemical compounds trigger food allergies. But I’m having trouble figuring out what I should talk about in each chapter. If anyone has some ideas please help. What would I do for data collection?
  13. Hey everyone, Hope you are having a good day. Some of you may have known me from past years. I have already made chemistry app two years ago. That app got a lot of attention and many people gave good advises on how to make it better. I put them all together and made new version of the app. Now i am happy to announce new updated app Chemistry for IB for high school students. App has almost everything students need including dictionary for people to search specific terminology and quizzes for every chapter with explanations. Apple Store link: https://apps.apple.com/us/app/id151
  14. Hey everyone! I have decided chemistry as my extended essay subject. It is the subject of my personal interest. But I am facing difficulties in choosing the topic for the essay. Interested areas include thermochemistry, chemical kinetics, and equilibrium. What is the chemical difference to our bodies in choosing organic foods over foods treated with pesticides? suggestions on the above mentioned topic are also appreciated and also want some new ideas.
  15. My current subjects are HL Math, Physics, Lang & Lit, ESS, Business, and French ab initio. I have 2 concerns with this: 1. Business and ESS are taught by the same person, and he kind of can't teach 2. Because I take Business, ESS, and ab initio, I'm afraid that it would not be competitive enough when applying to universities As a result, I'm considering one of the following: a) Take Business as a HL (have 4 HLs) b) Change Business to Chemistry c) Change ESS to Economics What do you suggest? I'm leaning towards the first two options, but I really don't k
  16. For IB students who need immediate online support with IB chemistry whether IA, EE, any chemistry topic; this is the best trending android app for IB DP/MYP chemistry students to connect with the best experienced IB chemistry tutors available 24/7 Download links http://app.appsgeyser.com/10914746/Chemistry Tutor https://gofile.io/d/EaYKNb
  17. Hello. I've been trying to find a topic and research question for my extended essay but I have been unable to do. I have found an experimental technique in the calorimeter which measures energy content/calories and I want to measure energy contents in different foods but I do not know what I should investigate specifically and expand on this. I don't want it to be as simple as "as x increases, y increases". Testing out different foods and seeing which one(s) have the higher calories is way too simple and I'm basically stuck..Please help!
  18. Hello Can anyone tell me how big the gap between chem HL&SL and econ HL&SL are? I'm currently taking math, chem, physics HL & english langlit, mandarin B, econ SL. Would dropping chem from HL to SL and switching econ SL to HL reduce the workload? I already feel quite overwhelmed by the amount of work from math&physics HL
  19. Hello so as the teacher advised me to consider carefully about my IA experiments, I would like to do an experiment about medicines. Could you please suggest me some good experiments about them? I thought about the synthesis of aspirin but the teacher said that it takes too much time. Also, since aspirin hydrolysis is already done by another student, it is preferable to avoid this topic. Thanks for your attention!
  20. Hi, I am deciding my topics for the extended essay in chemistry and was thinking of doing something around -: - The effect of pH on the hydrolysis of aspirin or - The most effective endothermic reactions to be used in instant cold packs. (currently used water and ammonia) Please give me feedback as to how I could improve my topics and any changes that I could make to make it more suitable to the real world.
  21. Hey guys! my chem IA is due tomorrow and I still need to complete my conclusion and evaluation. The last two points of my calculated data seem to be outliers and cause my trend line to have an r^2 value of 0. Without these last two points i have a linear relationship. Where do I address why these are outliers? So I take them out?
  22. Heyy! I am a student who is currently in Y11 and is going to study the IB Diploma starting next year. I would like to study astrophysics or law in uni and here are my current option choices: HL Physics, Maths AA, English Lit SL Economics, Spanish, Chemistry The problem here is that I absolutely love theatre but equally love chemistry and so I cannot choose between the to. The majority of the universities I have looked at and even spoken to do not have chemistry as a requirement but a few recommend having two sciences instead on one. I am passionate about both subjects, get the
  23. I need help... I don't know if I should choose Chemistry HL, I was a Core IGCSE student and I'm not very good at chemistry or an overall intelligent student , I was in the top 5 but as a class we are not very good anyway.Should i choose it i have until the 3rd of November to choose my options. Ohhhh. I'm also a hardcore procrastinator and never really do things on time. Is CHEM HL really hard? or if i study will i be able to do it
  24. So, I decided to do my EE on distillation, but I'm not able to come up with a good research question on simple distillation (fractional would also work). I would really appreciate certain examples for the research question on distillation. Thanks!!
  25. Hi, I am currently in the process of selecting a chemistry IA topic. I want to do something in the realm of environmental science. So far, I have the idea of investigating the effect of benzolphane on the bleaching of corals? Is there any way to replicate that in a lab setting, and in regards to chemistry concepts? Or, are there any other ideas around this topic? Thanks!
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